package sistemaobra.web.filter;


import javax.servlet.*;
import org.hibernate.SessionFactory;
import sistemaobra.util.HibernateUtil;


public class ConexaoHibernateFilter implements Filter {

	private SessionFactory sf;

	@Override
	public void destroy() {
	}

	@Override
	public void doFilter(ServletRequest servletRequest,
			ServletResponse servletResponse, FilterChain chain)
			throws ServletException {
		try {
			this.sf.getCurrentSession().beginTransaction();
			chain.doFilter(servletRequest, servletResponse);
			this.sf.getCurrentSession().getTransaction().commit();
			this.sf.getCurrentSession().close();
		} catch (Throwable ex) {
			try {
				if (this.sf.getCurrentSession().getTransaction().isActive()) {
					this.sf.getCurrentSession().getTransaction().rollback();
				}
			} catch (Throwable t) {
				t.printStackTrace();
			}
		}
	}

	@Override
	public void init(FilterConfig config) throws ServletException {
		this.sf = HibernateUtil.getSessionFactory();

	}
}
